147.10—Laboratory procedure recommended for the bacteriological examination of egg-type breeding flocks with salmonella enteritidis positive environments.
Birds selected for bacteriological examination from egg-type breeding flocks positive for Salmonella enteritidis after environmental monitoring should be examined as described in § 147.11(a) of this subpart, with the following exceptions and modifications allowed due to the high number of birds required for examination:
(a)
Except when visibly pathological tissues are present, direct culture, § 147.11(a)(1) of this subpart, may be omitted; and
(b)
Enrichment culture of organ (non-intestinal) tissues using a non- selective broth, § 147.11(a)(2) of this subpart, may be omitted.